Using the IMS Explorer with the IMS Catalog Hands-on Lab

Transcription

1 Using the IMS Explorer with the IMS Catalog Hands-on Lab Suzie Wendler Ken Blackman IBM Thursday August 15 Session Number Insert Custom Session QR if Desired. 1

2 This hands-on lab provides the opportunity to access IMS databases from a distributed runtime environment provided by IBM s IMS Enterprise Suite Explorer for Development. This lab focuses on the use of the IMS Catalog and IMS 12. The IMS Enterprise Suite Explorer for Development The IMS Enterprise Suite Explorer for Development is an Eclipsebased integrated development environment (IDE) for IMS application developers and database architects It can also be integrated with other IBM Eclipsed based tools (RAD, RDz, Optim Data Studio) Provides end-to-end application development cycle Graphical editors are used for development and visualization of Program Specification Blocks (PSBs) Database Descriptions (DBDs) See database Generate Edit PSB IMS Universal JDBC driver type-4 connectivity provides: Relational view of IMS data Graphical assistance to build SQL statements 2

3 DRDA IMS Application Server IMS Universal Driver DRDA Application Requestor DRDA TCP/IP IMS Connect TCPIP DRDA DDM SCI ODBM DLI calls DRA IMS z/os New support which incorporates the DLIModel Utility and the IMS 12 Catalog functionality: Provides current existing functionalities from IMS DLIModel Utility Provides migration support of existing DLIModel Utility projects Provides Metadata source for update to IMS Catalog Provides Metadata access from the IMS Catalog Distribution of the IMS Explorer is through a download capability IMS Enterprise Suite V at IMS Connect and Open Database Manager Open Database Manager (ODBM) is a Common Service Layer component Receives database connection requests from IMS Connect Translates incoming database requests from the DDM protocol into DLI calls expected by IMS Translates responses to the client into the DDM protocol Manages connections to IMS DB Implements the DRA interface 3

4 IMS Enterprise Suite Explorer for Development In this part of the lab, the IMS Explorer is used to create the IMS Java Database View metadata by parsing the IMS PART Database PSB and DBD sources. 1. Start IMS Explorer Click on Start > All Programs > IMS Enterprise Suite for Development > IMS Enterprise Suite for Development You may be prompted to select a workspace. A workspace is a directory that stores all of the files for the projects. You can select your own directory, e.g., C:\share\explorerlab\workspace or any name you choose. When Explorer startup is complete, you may be shown the Welcome Screen. If so, close the Welcome page (x the tab at the top of the screen on the left). 4

5 2. Click on File > New > IMS Explorer Project. (If you don t see IMS Explorer Project as a choice then click on File > New > Other and open the IMS folder and select IMS Explorer Project) 5

6 3. Define a Project Name, e.g., PnnSAM09 where nn is your team number. 6

7 Click Next. On the Select an Import Source window you can: (a) Use a Local file system if you have previously downloaded the source PSB and DBD files to your workstation, (b) Select a z/os system and connect directly to where your DBDs/PSBs are stored, or (c) If your IMS is at Version 12 with the Catalog function enabled, you can obtain the Metadata directly from the IMS Catalog. For this lab (Part 1) we will use a connection to the z/os system and download source from z/os to create the Metadata. 4. Select z/os system to obtain the source. 7

8 Click NEXT. Select the Add PSB button. You will be asked to provide the z/os connection information. 5. On the Connect to z/os System and Select Resources to Import screen, click on the No z/os connection to open the Connections box. 8

9 Select New. In the Name field enter PnnSAM09 where nn is your team number In the Host name field enter zserveros.demos.ibm.com Keep the Port Number as 21 (FTP port) and Transfer mode as Passive. 9

10 Click Apply and then OK. You will return to the Connect to z/os System and Select Resources to Import box which now has your connection name. To establish a connection, click the orange box (choose the connection you created) to open the System z FTP New Credentials box. 10

11 In the userid field enter IMPOTxx where xx is your team number. In the password field enter value provided by lab instructor. Click OK to establish the connection. 6. You are now ready to retrieve your IMS resources. Change the High-Level qualifier field to IMS.V12R1.SDFSISRC and hit Enter on your 11

12 PC keyboard. Scroll down the list and select your PNNSAM09 PSB Click Finish to activate the parsing of the PSB and DBD. 12

13 Note you will be prompted to add the DBD DI21PART. Select the ADD DBD button and then scroll and then select DI21PART Click FINISH. 13

14 After parsing completes, your project is created. Click on Finish. Now it is time to add the fields to the segments that were not defined in the DBD but are available in a Cobol Copybook. 14

15 7. In the Project Explorer box, click the + to open your PnnSAM09 project and navigate to the DBD folder. To open the basic view double click on DI21PART. 15

16 You will see a graphical representation of the database. The Manage Fields function is used to add more fields to the segment since only the key fields are defined. Right click on PARTROOT and select Import COBOL or PL/I Structures. The Import Data Structures box opens. You will need to import the COBOL structures. The copybook was previously downloaded to your workstation. Select the Browse button and look for the following directory C:\share\boston2013\lab\source. Select C00SAM09 and click Open. 16

17 Use the Drop down list to specify the structure for the PARTROOT segment. 17

18 Select Add to Import List button. 18

19 Click Finish to complete the import process. The PARTROOT segment (table) will now have all the fields (columns). 19

20 Repeat the above process for the other segments. This completes the field definitions. 20

21 Use Ctrl-S to save the changes or just use the x tab to close the view. In the Project Explorer box, Follow the path IMS Universal Drivers Metadata > Pnnsam09 and double-click PnnSAM09DatabaseView.java to view the updates to the metadata. This completes the building of the metadata. 8. You are now ready to use the Data Store Explorer (DSE) to access the IMS PART database using the metadata you just created. To connect to an IMS database use the New Connection wizard to create a connection profile, so that you can connect to an IMS database and browse existing data objects. 21

22 If you already have the Data Source Explorer box open at the bottom of your IMS Explorer window then you can skip the following instructions. If you do not have the Data Source Explorer box then click on the Window tab at the top of the IMS Explorer tool and follow the path: Show View > Other. In the Show View > Other box, click + Data Management, select Data Source Explorer and click OK. 22

23 In the Data Source Explorer, right-click the Database Connections folder, and click New. 23

24 The New Connections box opens up. Select IMS as the database manager and the driver name IMS Universal JDBC Driver as the JDBC driver. 24

25 Under Properties General tab In the Connection Name field enter IMPOTxx where xx is your team number In the HOST field enter zserveros.demos.ibm.com In the Port number field enter 7001 In the userid field enter IMPOTxx where xx is your team number In the password field enter value provided by lab instructor In the Metadata source drop down list select Local IMS Explorer project From the Project drop down list, select your project, e.g., PnnSAM09 25

26 Under Properties select Optional tab 26

27 In the Data store: field enter IMSD Click Finish. The connection is displayed in the Data Source Explorer. 27

28 The preceding picture shows that the connection is active. If you need to disconnect or re Connect, all you have to do is right click on the connection name and choose your action. 28

29 To test the connection in the Data Source Explorer section under Database Connections, right click on the connection name you defined, e.g., IMPOTxx. Data then Expand the path until you can select PARTROOT. Right click and select click on Return All Rows to return data. The results will be available in the box on the right under SQL Results. 29

30 You can now also issue additional queries. In between queries, you might need to disconnect/reconnect the connections. Try looking at other tables/columns. 9. You can also try creating SQL calls using the SQL Query Builder. In the Project Explorer box, select your project e.g., PnnSAM09. Right click New > Other 30

31 In the Select a Wizard box expand the Data folder and select SQL or XQuery Script then click Next. You will see the New SQL or Xquery Script box change Name to SelectScript1. Choose your Project PnnSAM09 from the dropdown list. Under the radio button SQL Query Builder note that you can choose your Statement type. The default is Select. 31

32 When you have changed the values, click Finish. You will need to select a connection profile for the database you want to access. Choose the one you created earlier, e.g., IMPOTxx. Click Finish. The SQL Query Builder Box opens upl In the Add a table window right click and select Add Table. 32

33 Use the drop down list to specify segments (tables) 33

34 You will be able to choose which tables to add, and check which columns to include. Note how the script is built. When you are done, position your cursor to the upper box, right click on the Select statement that was built and choose the Run SQL option. 34

35 The results can be viewed in the bottom box. Note that there are two tabs. One for Status and one for Results. 35

36 Save the SelectScript1.sql script you created by issuing Ctrl-s. 36

37 You can also review the DL/I calls that were generated to support the SQL request. Keeping the SelectScript1.sql window open, go to the top of the IMS Explorer window, click on IMS Explorer and then on Show SQL to DLI call translation tabs. The SQL to DL/I Call translation window opens up. Fill in the Connection profile with the PnnSAM09 value you have been using and a PSB value of DFSSAM09. Cut and paste the SQL statement from the SelectScript1.sql window and hit the Translate tab. 37

38 Take the time now to continue using the same wizard to INSERT a new PARTROOT e.g., Use 02PnnSAM09 (where nn is your team number) for the partkey value. Run the SQL statement when you are done. Check the SQL Results at the 38

39 bottom tab to make sure it ran to successful completion. You can also try an UPDATE. Note for an UPDATE you will need to use the Set and Where tabs in the box that allows you to choose your tables. For example you can specify a different value for the REJECT_CODE and qualify the call using the partkey PART_NO_EDIT = 02PnnSAM09. 39

40 Check the SQL Results tab at the bottom of the window. Finally, try the DELETE and remove the 02PnnSAM09 part that you previously created. 40

41 41

42 This completes the lab. 42